Self-threading shuttle.



A. GUILMETTE. SELF THRBADING SHUTTLE. APPLICATION FILED JULY 24,1912.

1,099,647, Patented June 9, 1914.

5. M. 44%. S mgwm ADELARD GUILMETTE, OF GRAFTGN, MASSACHUSETTS.

SELF-THREADING SHUTTLE.

Specification of Letters Patent.

Application filed July 2 1, 1912.

Patented J nne 9, 1914.

Serial No. 711,213.

To all whom it may concern Be it known that T, ADELARD GUILMETTE, acitizen of the United States, residing at Grafton in the county ofWorcester and State of Massachusetts, have invented a new and usefulSelf-Threading Shuttle, of which the following is a specification.

This invention relates to a self-threading or automatic attachment for aloom shuttle.

The principal objects of the invention are to provide a construction forapplication to the usual longitudinal threading slit for the purpose ofcausing the thread automatically to come into a position in said slitwhen it is brought around into the eye that will cause the thread to beheld against dislodgment from the threading slit and to make theconstruction thereoi'. of a very simple and inexpensive character sothat it not only can be made cheaply but can be repaired if necessarywith very little expense; also to provide simple and convenient meansfor holdin' the device in position of such a character tiat the samewill not get out of shape when being inserted in the shuttle, to providea pair of spaced projections extending past each other suitably arrangedto prevent the dislodgment of the thread, and especially, in thepreferred form of the invention, to provide a construction in whichthere are two legs or projections 011 one side between which extends aprojection from the other side whereby the thread is held againstdislodgment by motion from either side; and to provide a constructionwhereby the distance between these projections can be regulated toaccommodate threads of different kinds and sizes. The invention in thisform also involves a construction which can be made cheaply andconveniently from a single piece of wire.

Further objects and advantages of the in vention will appearhereinafter.

Reference is to be had to the accompanying drawings in which Figure 1 isa plan of a portion of a shuttle of well known type with a preferredform of this invention applied thereto; Fig. 2 is a transverse sectionalview 01' the same on the line 22 of Fig. 1; and Fig. 3 is a perspectiveview of the threading attachment removed from the shuttle.

In the drawings the invention is shown in a form in which the attachmentcan be made of a single piece of wire. In this form the shuttle 10 is ofany usual construction having the usual threading slit 11 and anenlarged vertical recess 12 just behind it for connection with the slot13 through which the thread is taken to the lateral thread-eye. In thepresent instance the longitudinal slit 11 is modified somewhat from theusual construction having in one wall thereof a horizontal longitudinalslot 15 cut clear through the wall between the main cavity of theshuttle and the vertical recess. This slot is located below the top ofthe shuttle. On the opposite side of this slit is a vertical groove 16extending substantially to the bottom and in the bottom surface is ashort longitudinal groove 17.

The attachment which comprises the automatic or self-threading device inthis form consists of a single piece of wire bent to form a loop or ear20 from which extend downwardly two legs 21 and 22 at right angles tothe ear. One 01 these legs extends down slightly below the other and isbent up at 2-5 for a purpose to be brought out hereinafter. The otherleg is bent transversely at the bottom substantially parallel with theloop and then extends upwardly to form a part 25 extending substantiallyto the level of the car 20. From this point the end 26 of the wireextends inwardly and downwardly at a sharp inclination until it passesthe plane in which the two legs 21 and 22 are located comingsubstantially mid way between them where it terminates. hen the partsare in position the car 20 is put into the horizontal slot 15 and thepart 25 into the vertical groove 16. This securely holds the parts inposition and projects the tongue 26 clear across the threading slitbetween the legs 21 and 22. At the same time the bend 23 is located inthe groove 17 at the bottom and is held in fixed position by its contacttherewith. Now a pin 28 is driven through the wall of the shuttlevertically down through the car 20 and holds the device in position.

With the parts so arranged it will be seen that a thread from the bobbinlaid longitudinally over the top of the threading slit and forced downinto the recess 12 will necessarily pass down over the nose of theprojecting end or tongue 26 and be caught under it. When once under thisnose itcannot possibl move upwardly out of the threading slit as will beobvious from the construction described. It on account of the size orcharacter of the thread it does 1 not thread into this device easilyenough the bend 23 can be forced along the bottom groove 17 in which itis located so as to widen the space between the two legs. Thisattachment is a convenient one. It will be seen, of course, that inaddition to the holding pin the vertical member 25 being located in thevertical groove assists in holding the parts in position as does thebend 23.

Although I have illustrated and described only one form of the invention1 am aware of the fact that these principles can be carried out in otherforms by persons skilled in the art without departing from the scope ofthe invention as expressed in the claims. Therefore I do not wish to belimited to all the details of construction herein shown and described,but

hat I do claim is 1. As an article of manufacture, a shuttle for loomshaving a longitudinal theading slit, a threading device secured thereinnear the upper end of said slit and consisting of a piece of wire bentto form two legs extending downwardly at one side of said slit, and anintegral tongue extending downwardly from the opposite side thereofbetween said legs, one of said legs projecting down below the bodythereof, the shuttle having a longitudinal groove in the bottom of theslit for slidably receiving the end of the last named leg, whereby saidleg is maintained in fixed position transversely of the shuttle, but maybe bent at the bottom to occupy different longitudinal positions in thegroove, thus adjusting the space between the legs to accommodate threadof different sizes.

2. As an article of manufacture, a loom shuttle comprising a shuttlebody having a shuttle eye and a longitudinal threading slit extendingfrom the body of the shuttle toward the eye, said threading slit beingprovided with a horizontal slot near the top thereof on one side, avertical groove extending down the other side and with a horizontallongitudinal groove at the bottom of said slit, and a threading devicein said threading slit having an integral looped projection at the topat one side entering said horizontal slot and held in position thereinby a vertical pin passing through the looped projection, and having twolegs extending downwardly from said looped projection substantially tothe bottom of said threading slit, one of said legs being bent acrossthe bottom of the threading slit and then upwardly and secured withinsaid vertical groove, and extending from the top of said groovedownwardly to a point between said two legs for guiding the thread intothe threading device, the second of said legs projecting below thebottom of the slit and being bent longitudinally of said slit andslidably secured in said horizontal longitudinal groove, whereby saidleg is maintained in fixed position transversely of the shuttle but maybe bent at the bottom to occupy different longitudinal positions in thegroove, thus adjusting the space between the legs to accommodate threadof difierent sizes.

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing witnesses.

ADELARD GUILMETTE.

Witnesses C. Fonnnsr \Vrssox, E. M. ALLEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

